A possibly ethical question re: wave starts (Read 404 times)

I am going to race "Beat The Bridge" 8k in seattle this May. I expect to finish it in right around 35:00 so probably a little over a 7:00 pace. There are 3 waves, a sub 7 wave, a sub 8 wave and an everyone else wave. I'm considering going off with the first wave because I know that a lot of runners who will not break the 7:00/mile pace will go with that group and I mostly don't want to get stuck behind any of the slower people from the first wave if I go with the second wave since I'd like to "race" this race.
So, In your experience would this be a really cruddy thing of me to do? A race this size, I'm sure I won't be the only person who isn't going to quite run under a 7:00 pace but I don't want to do it if it would be considered rude or unsportsman-like or any of the above.
Any and all feedback is welcome and appreciated.
Thanks everyone!